package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.domain.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections.CollectionUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;

@RestController("userDishController")
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "C端-菜品浏览接口")
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 根据分类category_id查询已起售的菜品
     *
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(Long categoryId) {
        //给存入redis的数据制定key名字
        String key = "dish_" + categoryId;
        //从redis查询
        List<DishVO> list = (List<DishVO>)redisTemplate.opsForValue().get(key);
        if (!CollectionUtils.isEmpty(list)){
            //直接返回redis查询到到数据
            return Result.success(list);
        }
        //redis中没有该分类的菜品,从数据库中查询
        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        //设置状态为起售中的菜品
        dish.setStatus(StatusConstant.ENABLE);
        list = dishService.listWithFlavor(dish);
        //存入redis方便以后直接查询
        redisTemplate.opsForValue().set(key,list);
        return Result.success(list);
    }

}